Questyle M12i / M 12i / M12 i Mobile Headphone USB AMP DAC

Following the success of the 1st Generation M12, M12i also features high-performance audio signal processing. It breaks through the limitations of integrated audio circuits in phones in terms of technology, cost, and size. With Questyle's unique Current Mode Amplification paired with the ESS flagship USB DAC chip, it allows users to fully enjoy lossless audio content from streaming platforms with traditional HiFi headphones, ensuring the best audio experience.


FULL COMPATIBILITY FOR TRUE LOSSLESS ENJOYMENT


During development, Questyle Labs conducted extensive testing and targeted optimization for M12i's compatibility with mainstream smartphones and tablets. It managed to achieve high compatibility with iOS, HarmonyOS, and Android versions 5.1 and above. As for PC apps, it supports Windows 10 and above, and macOS. As a result, HiFi headphone users can fully enjoy lossless audio content from streaming platforms anytime, anywhere.


SPECIFICATIONS:


COMPATIBLE OPERATING SYSTEMS
-Android phones and tablets: Android 5.0 and above
-PC: Win10 1803 and above
-Apple cellphone: iOS (You need to buy an OTG cable for Lightning to USB-C)
-Apple computer: Mac OS


DAC CAPABILITY
-PCM: PCM: 44.1kHz – 384kHz (16/24/32Bit)
-DSD: DSD64(1Bit 2.8MHz) , DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz), DSD512(1Bit 22.4MHz)


OUTPUT POWER
-RL=16Ω, Po=19mW
-RL=32Ω, Po=21mW
-RL=300Ω, Po=11.97mW
-Vout(Max)=1.895Vrms


FREQUENCY RESPONSE & THD
Frequency Response: ±0.1dB (20Hz-20kHz)
-THD+N: 0.0003%
-DAC: ESS flagship USB DAC chip ES9281AC


APPEARANCE
-Material: CNC machined aluminum
-Color: Black
-Size: 61.8mm x 27.2mm x 12mm